package com.chisheng.caa.util;

import org.springframework.data.redis.core.BoundSetOperations;
import org.springframework.data.redis.core.HashOperations;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.util.*;
import java.util.concurrent.TimeUnit;

/**
 * Redis 缓存操作工具类
 */
@Component
@SuppressWarnings("unused")
public class RedisCacheUtil {

    @Resource
    public RedisTemplate<String, Object> redisTemplate;

    /**
     * 缓存基本的对象 Integer, String 实体类等
     */
    public <T> void setCacheObject(final String key, final T value) {
        redisTemplate.opsForValue().set(key, value);
    }

    /**
     * 缓存基本的对象 Integer, String 实体类等
     *
     * @param timeout  时间
     * @param timeUnit 时间颗粒度
     */
    public <T> void setCacheObject(final String key, final T value, final long timeout, final TimeUnit timeUnit) {
        redisTemplate.opsForValue().set(key, value, timeout, timeUnit);
    }

    /**
     * 设置有效时间
     *
     * @param timeout 超时时间
     * @return true=设置成功; false=设置失败
     */
    public boolean expire(final String key, final long timeout) {
        return expire(key, timeout, TimeUnit.SECONDS);
    }

    /**
     * 设置有效时间
     *
     * @param timeout 超时时间
     * @param unit    时间单位
     * @return true=设置成功; false=设置失败
     */
    public boolean expire(final String key, final long timeout, final TimeUnit unit) {
        return Boolean.TRUE.equals(redisTemplate.expire(key, timeout, unit));
    }

    /**
     * 获得缓存的基本对象
     */
    @SuppressWarnings("unchecked")
    public <T> T getCacheObject(final String key) {
        return (T) redisTemplate.opsForValue().get(key);
    }

    /**
     * 删除单个对象
     */
    public boolean deleteObject(final String key) {
        return Boolean.TRUE.equals(redisTemplate.delete(key));
    }

    /**
     * 删除集合对象
     *
     * @param keys 多个对象
     */
    public long deleteObject(final Collection<String> keys) {
        return keys.stream().map(this::deleteObject).count();
    }

    /**
     * 缓存 list 数据
     */
    public <T> long setCacheList(final String key, final List<T> dataList) {
        Long count = redisTemplate.opsForList().rightPushAll(key, dataList);
        return count == null ? 0 : count;
    }

    /**
     * 获得缓存的 list 对象
     */
    @SuppressWarnings("unchecked")
    public <T> List<T> getCacheList(final String key) {
        return (List<T>) redisTemplate.opsForList().range(key, 0, -1);
    }

    /**
     * 缓存 set 对象
     */
    @SuppressWarnings("unchecked")
    public <T> BoundSetOperations<String, T> setCacheSet(final String key, final Set<T> dataSet) {
        BoundSetOperations<String, T> ops = (BoundSetOperations<String, T>) redisTemplate.boundSetOps(key);
        dataSet.forEach(o -> ops.add(Objects.requireNonNull(o)));
        return ops;
    }

    /**
     * 获得缓存的 set 对象
     */
    @SuppressWarnings("unchecked")
    public <T> Set<T> getCacheSet(final String key) {
        return (Set<T>) redisTemplate.opsForSet().members(key);
    }

    /**
     * 缓存 map 对象
     */
    public <T> void setCacheMap(final String key, final Map<String, T> dataMap) {
        redisTemplate.opsForHash().putAll(key, Objects.requireNonNull(dataMap));
    }

    /**
     * 获得缓存的 map 对象
     */
    public <T> Map<Object, Object> getCacheMap(final String key) {
        return redisTemplate.opsForHash().entries(key);
    }

    /**
     * 往 Hash 中存入数据
     */
    public <T> void setCacheMapValue(final String key, final String hKey, final T value) {
        redisTemplate.opsForHash().put(key, hKey, value);
    }

    /**
     * 获取 Hash 中的数据
     */
    public <T> T getCacheMapValue(final String key, final String hKey) {
        HashOperations<String, String, T> opsForHash = redisTemplate.opsForHash();
        return opsForHash.get(key, hKey);
    }

    /**
     * 删除 Hash 中的数据
     */
    public void deleteCacheMapValue(final String key, final String hKey) {
        HashOperations<String, Object, Object> hashOperations = redisTemplate.opsForHash();
        hashOperations.delete(key, hKey);
    }

    /**
     * 获取多个 Hash中 的数据
     */
    @SuppressWarnings("unchecked")
    public <T> List<T> getMultiCacheMapValue(final String key, final Collection<Object> hKeys) {
        return (List<T>) redisTemplate.opsForHash().multiGet(key, hKeys);
    }

    /**
     * 获得缓存的基本对象列表
     *
     * @param pattern 字符串前缀
     */
    public Collection<String> keys(final String pattern) {
        return redisTemplate.keys(pattern);
    }

}